Mechanical movement



Mar. 3. 1925. 1,528,225

' A. w. REDIITJ ET AL MECHANICAL MOVEMENT FiTed Nv. 15, 192 2 Sheets-Seet 1' lllllllllllllllllllmiiillllllllll Mar. 3, 1925.

A. W. REDIN ET AL MECHANICAL MOVEMENT Filed Nov. 15, 1923 I 2 Sheets-Sheet 2 Patented Mar. 3, 1925.

UNITED STATES- PATENT OFFlCE.

ANDREW W. REDIN AND ROY W. REDIN, OF ROCKFORD, ILLINOIS.

MECHANICAL MOVEMENT.

To all whom it may concern:

Be it known that we, ANDREW \V. REDIN and ROY V. REDIN, citizens of the United States, residing at Rockford, in the county of Vinnebago and State of Illinois, have invented certain new and useful Improvements in Mechanical Movements, of which the following is a specification.

This invention relates to a mechanical movement of the character disclosed in Pat ent No. 613,199, dated Oct. 25, 1898, for mechanical movement, which provides mechanism for producing an intermittently rotary and oscillatory movement from continuous rotary movement; and the primary object of the present invention is to provide a. generally improved and simplified mechanical movement of this character.

More particularly, ourlinvent-ion contemplates the provision of novel-mechanismso operable between a pair of rotary members as to transmit either rotary or oscillatory movement to one from continuous rotary movementof the other, such mechanism being improved especially in regard to the means for transmitting the movement between said rotary members, and further in regard to the means for effecting the change from one movement to the other.

Our invention while generally applicable as a mechanical movement is especially adapted for use incircular knitting machines for imparting either rotary or oscillatory movement to the needle cylinder or to the needle cams. V V

Other objects will be appreciated by tligse skilled in this art as the invention becomes better understood by reference to the following description when considered in connection with the accompanying drawings, in which 1 Figure 1 is a side elevation of mechanism for transmitting a mechanical movement in accordance with our invention;

Fig. 2 is a sectional view taken substantially on the line -22 of Fig. 1;

Fig. 3 is an enlarged fragmentary view looking at the left hand end of Fig. 1;

Fig. 4 is a detail section taken on the line 4-4 of Fig. 1; y

Figs. and 6 are detail sections taken on the lines 5-5 and 6-6, respectively, of Fig. 3; and

Figs. 7 to 12 inclusive, are a series of 13 and 14 suitably journaled in concentric relation on bearing brackets 15 and 16. Spur pmions 17 and 18 mesh with the gears 13 and 14 respectively, the pinion 17 being continuously. driven as by a belt and pulley, and the pinion 18 being the driven element for transmitting the intermittent rotary oscillatory movement. In the application of our mechanical movement to a circular knitting machine, the pinion 18 drives ashaft 19 through the agency of bevel gears 21, which shaft in turn drives the needle cylinder or the cams according to the type of knitting machine.

Our invention has to do with the means operative between the rotary members 13 and 14 for transmitting intermittent rotary and oscillatory movement from one to the other. Each of said members carries a drive-transmitting part, that for the gear 13 being the inner end 22 of a movable wrist pin, and for the gear 14 a fixed lug 23, likewise part of a wrist pin. These parts overlap so that by moving the part 22 radially it may be brought into and out of a path coinciding with the part 23. With these parts in alignment, rotary motion will be transmitted directly thereby, from the member 13 to the member 14. When said parts are out of alignment or registration, motion will be transmitted therebetween by means of a connector which transforms rotary movement of the part .22 to oscillatory movement of the part 23. The means for shifting said part 22 into and out of said; registration or connection with the part 23 and the means for transforming movement between-said parts will now be described in order. i

Referring more particularly to Figs. 3 and 6, it will be observed that the part 22 is in the form of a wrist pin fixed in a slide designated generally 24 mounted for movement lengthwise in a radial slot or aperture 25 in the rotary member 13. Said slide has retaining or side walls 26 which overlap the sides of the member 13 and hold the slideagainst lateral displacement.- The slide carries on its side opposite from the projecting part 22, a cam follower in the form of a roller 27. This roller is adapted riers 31 and 32 mounted on' suitableways 33 on the bracket for movement in a plane at right angles to'the'plane of'r'otation of the member-13. "Means is provided for moving either one of said'cams into the path of the follower roller 27Iandthe other out of said path,'so thatonly one of the cams functions at a time. This means at present consists of a cam 'sl1de'34 movable in a plane transverse to the cam carriers 32 and having formed therein a pair of"'opp0 sitely .iinclined slots 35 and 36 inwh'ichare respectively located pins-"37 and 38 fixed to the'cam carriers 31'. and 32. Any suitable 'meansmay be provided for shifting the cam slide 34, such for example as anoper'ating link 39. In the full'line'position shown in *Figs. 3 and 5, the cam slide'34 has been moved to its uppermost position,"thereby advancing the cam29 into thepath of the follower 27 and withdrawing the cam 28 from said path. Upon shifting the cam slide 34 in the opposite direction. it will be manifest that by action of the inclined slots 35 and 36 on the pins 37 and'38 respectively, the position of the'cams 28 and 29 will be reversed as indicated in dotted lines on Fig.

'5. Vhen'the member 13"is revolved in. a

counterclockwise direction viewing Fig. 3,

its'cam follower roller 27 will be moved member 13 to the full line positionshown in Fig. 5. The parts will remain in this position during. continued rotation until changed by the reversal of the position of the cams, in'which event the cam28'serves to move the roller 27'outwardly' as will be obvious. In the inner position referredto,

the drive-transmittingpart 22 is out of registration with its complemental part"23,' and in said outermostposition said parts are in registration for transmitting the continuous rotary movement.

Means is provided for locking theslide '24 in itsinner and outer positions, consisting in the presentinstance of a pair of looking pins 41'and 42 (F,igs.f3and .6) carried --in a casing 43insertedin the-inember13 and "fixed-*with*res ect thereto. Said locking fixed to'an oscillatory part 49 on the casing 43 which carries a cam follower roller 51 adapted to be actuated by either of the cams 28 or 29 in advance of the roller 27. The cam follower roller 51 and its fingers 48 are so relatively arranged that when the slide 24 is to' be moved to its inner position by 'the'cam 28, the roller 51 will be actuated to withdraw thelocking pin 42 and leave the pin 4l'free to enter its respective recess in said slide under the influence of its spring 44. Thus, as the parts are shown in Fig. 3,

the part 49 has been swung in a counter-- cloclnvisedirection by the action of the'cam 29 on the roller 51 so as to' withdraw the pin 42'from the recess 46 and allow the pin 41 to enter the recess 45. However, the pin 41 does not enter the recess until the slide 24 has been moved inwardly by subsequent action of the cam 29 on the roller 27, which brings said recess 45 into alignment with the pin 41, allowing the latter to enter, in which position the parts are shown in full lines in Fig. 3. It will be manifest that when thecam 28 is put into action, the cam followers 51 and 27 will be actuated in succession. thereby unlocking the slide and moving it to the outer position, in which it will be locked by the pin 42.

From the foregoing, it will be apparent thatby shifting thecams28 and 29, which in practice may be done either at will or automatically, as the'case may require, the

drive-transmitting part .22 will be moved into and out of driving relation with the part 23 and locked in each position for the purposedescribed above. 7

Referring now to the connector-means for transforming the movement between the parts 22 and 23 when they are.out of alignment,-it'will be'observe'd that this comprises,

generallystated, an oscillatory arm 52 and a P2111 of -l1nks'53 and 54 connecting said arm with the parts '22 and'23"respectively. In the present embodiment of our invention,

the oscillatory arm, 52 has a fixed fulcrum 55 and the links 53 and 54 are concentrically,

pivotally connectedat their ends 56 to the outerend of the arm 52. Theselinks act as pitmen in relation tothemeni'bers 13 and "14. Thelinkor pi'tman53 connects to the wrist pin portion"57f' of'the part-22, as

shown in Fig. '6, and the link 54 has a similar connectionwith the wrist pin58,

which" as shown on Fig. '4, isfixed to the member 14 and carries the drive-transmitting part 23. v

'lhebperation" of tlns"o'sc'1llatory' connector grammatically the different positions of the connector. The driving member 13 and consequently the drive-transmitting part 22,

revolves in a counterclockwise direction, viewing said figures. In Fig. 7, the parts 22 and 23 are. in driving alignment, thereby establishing direct connection between the members 13 and 14 so that the latter will be continuously rotated, it being noted that this relation of the parts 22 and 23 is maintained during such rotation by reason of the part being fixed to the driven member 14L. During such rotation the connector parts 52, 53 and. 54: simply oscillate idly in the manner of an articulated pitman. In said position, the wrist pin centers of the parts 22 and 23 are concentric, and in order to change the drive to the member 14 from continuous rotary to oscillatory movement, one of said centers will be moved to eccentric relation, as for example by movement of the member 22 inwardly, by action of the cam 29 to the position shown in Fig. 8 in which said part 22 is out of driving alignment with the part 23. As the part 22 continues in its circular travel in a counterclockwise direction, the center 59 will be swung downwardly until the center of the part 22 passes the point shown in. Fig. 9, at which the are 61 of the link 53 is tangential to the are 62. During this portion of the cycle, that is, from the time the parts 22 and 2 :3 have been disconnected until the part-22 reaches the position shown in Fig. 9, the member 14 will be moved in a counterclockwise direction by reason of the downward. travel of the link 54. As the part 22 continues in its circular path in a counterclockwise direction, as shown in Fig. 10, the point will be drawn upwardly, thereby imparting a thrust through the link 54., causing the member 14 to be oscillated in a clockwise direction, as indicated by the arrows in said figure. The limit of this reverse movement of the member 14 is reached when the part 22 has traveled approximately 180 degrees, that is, to the point shown in Fig. 10, diametrically opposite from the tangential position referred to and at which the point 59 reaches its highest elevation. In the present instance, the member 14 will be reversed through about degrees. As the part 22 continues in its travel, the motion of the part 14 will be reversed as shown in Fig. 11, and will con- .tinue to the limit of such movement as shown in Fig. 9. It will be manifest that while the parts 22 and 23 are out of driving alignment, the driven member 14; will be oscillated approximately 90 degrees in each direction for each revolution of the driving member 13. In Fig. 12, we have shown the approximate point at which the member 22 will be moved back into driving alignment with the part 23 by the action of the cam 28, thus establishing direct driving connection between the members 13 and 14.

From the foregoing it will be manifest that by shifting the control member 39 either of the cams 28 or 29 may be brought into'action for shifting the drivetransmitting part 22 into and out of driving alignment with the part 23 for the purpose of transmitting from the driving member 13 to the driven member 14 either rotary or oscillatory movement. The means for accomplishing this transmission of motion comprises but comparatively few parts, arranged in compact relation, is "positive in its action, and doesnot impose undue or excessive frictional resistancebetween cooperating parts. The mechanism is therefore, well suited for use in different automatic machines, where continuous operation for long periods is desired and is as men- 'tloned above, particularly deslrable in connection with knitting machines.

It is believed that the foregoing conveys a clear understanding of the objects prefaced above, and while we have illustrated but a single working embodiment, it 3 should be understood that changes might be madein the construction and arrangement of parts without departing from the spirit and scope of the invention as expressed in the appended claims.

lVe claim:

1. In a mechanical movement, in combination, apair of concentric rotary members, a

slide shiftable radially on one of said members and equipped on the inner side thereof with a drive-transmitting part and on its outer side with a cam follower, a drivetransmitting part on the inner side ofthe other rotary member and adapted tobe intermittently driven by the first mentioned drive-transmitting part, cams adapted to be moved into' and outof the path of said follower for moving its drive-transmitting part into and out of said driving connection, and means operative between said drivet-ransmitting parts for transmitting oscillatorymovement to the driven part when they are disconnected.

2. In a mechanical movement, in combination, a pair of concentric rotary members, a slide shiftable radially on one of said members and equipped on the inner side thereof with a drive-transmitti11g part and on its outer side with a. cam follower, a drivetransmitting part on the inner side of the other rotary member and adapted to be intermittently driven by the first mentioned drive-transmitting part, cams adapted to be moved into and out of the path of said follower for moving its drive-transmitting part into and out of said driving connection, and means operative between said driveloo transmitting parts for transmitting oscillatory; movement 'to thedriven partwhen they are disconnected, 'said' ineans comprising an oscillatory arm and apair .of links, each link being connected to adrive-transmitting part and pivotally co'nnecte'd'to'the oscillatory' arm. n Y I a 3. In a mechanical movement, in combination, a pair of rotary members concentrically mounted and each provided with, a wrist tric positions.

4:. In a mechanical movement, incombination, apair of rotary members concentrically mounted and each provided with a wrist pin having a part adapted to be brought into and out of driving connection, one of said wrist pins being radially adjustable to become axially concentric or eccentric with respect to the other, whereby to establish clirect driving connection between said members when in said concentric position, means operative between said wrist pins for transmitting oscillatory movement to one member from rotary movement of the otherwhen said wrist pins are in said eccentric relation, a cam follower roller connected with said adjustable wrist pin, cam faces foroperating said roller to move its wrist pin into and out of said concentric and eccentric positions, and -means on one of said members for locking re gae saidlrdjustable wrist pin in its several operi osit on r a In mechanical movement, in combination, 'a pair of rotary members, a drivetransmitting part on each member, one being fiXed and the other radially movable into andoutofdriving alignment with the fixed part, a slide carrying said movable drivetran'smittingpart and equipped with a cam followerroller,means for locking said slld e nf ts several operative pos tions, a cam follower roller for actuating said locking means, cams operable on said rollers for releasing said'locking means and moving the slide to said operative positions, and means operative between sald drive-transmltting parts for transmitting oscillatory movement ing means, cams operable on said rollers "for releasing said locking means and moving the sllde to sald operative positions, and

means operative between said drive-transmitting parts for transmitting oscillatory imovement to one of said members from rotary movement of the other when said parts are out ,Of dllving al gnment, comprlsing an oscillatory arm and a pair of links plvotally connected at one end to said arm and each connected at its opposite end to one of said drive-transmitting parts.

ANDREW W.v REDIN. nor w. 'REDIN. 

